#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin>>n;
	switch(n)
	{
		case 1:cout<<"Monday";break;
		case 2:cout<<"Tuesday";break;
		case 3:cout<<"Wednesday";break;
		case 4:cout<<"Thursday";break;
		case 5:cout<<"Friday";break;
		case 6:cout<<"Saturday";break;
		case 7:cout<<"Sunday";break;
		default :cout<<"Error";
	}
    return 0;
}
